body {
    font-family: sans-serif;
    font-size: small;
    margin: 1em;
}

fieldset {
    border: solid 5px #999;
    -webkit-border-radius: 10px;
    margin: 1em 0;
    display: block;
}

textarea {
    border-color: #ccc;
    display: block;
    width: 100%;
    box-sizing: border-box;
}

label {
    font-weight: bold;
}

button {
    font-weight: bold;
}

#shelf ul {
    list-style-type: none;
    padding: 0;
}

#shelf li {
    display: inline-block;
    border: solid 5px #999;
    -webkit-border-radius: 10px;
    padding: 5px;
    margin: 0 0.5em 0.5em 0;
    font-size: 40px;
}

#shelf li img {
    width: 60px;
    height: 60px;
    vertical-align: middle;
}